package Test;

import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;

public class Demo4 {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        Callable<Integer> callable=new Callable<Integer>() {
            @Override
            public Integer call() throws Exception {
                int sum=0;
                for(int i=0;i<=1000;i++){
                    sum+=i;
                }
                return sum;
            }
        };

        FutureTask<Integer>  task=new FutureTask<>(callable);
        Thread t=new Thread();
        t.start();
        Integer result=task.get();

    }
}
